Home / 18,897.39-28,347.62-5,749.76

Finding the Fourth Proportional to 18,897.39, 28,347.62 and 5,749.76

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Solution

The fourth proportional to 18,897.39, 28,347.62 and 5,749.76 is: 8,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.39 : 28,347.62 = 5,749.76 : x
  2. Step 2: Convert to fraction form
    18,897.39/28,347.62 = 5,749.76/x
  3. Step 3: Cross multiply
    18,897.39x = 28,347.62 × 5,749.76
  4. Step 4: Simplify right side
    18,897.39x = 162,992,006.31
  5. Step 5: Solve for x
    x = 162,992,006.31/18,897.39
  6. Step 6: Final answer
    x = 8,625.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.